Synthesis of LiCoO2 via a facile hydrothermal-assisted route

Abstract

A hydrothermal-assisted route was applied to prepare LiCoO 2 particles. The starting material prepared by hydrothermal reaction was calcinated at different temperatures from 300 to 800°C in air and LiCoO 2 particles with various sizes were obtained. The morphology and size effects of LiCoO 2 particle were investigated by X-ray powder diffraction (XRD) and scanning electron microscope (SEM). LiCoO 2 prepared by this method was homogenous plate-like particles and the particle size could be easily controlled by calcination temperature.

Impact of Lithium Composition on Structural, Electronic and Optical Properties of Lithium Cobaltite Prepared by Solid-state Reaction

“…Many methods have been applied for preparation of LiCoO 2 crystals such as hydrothermal growth, sol-gel, co-precipitation, pulsed laser deposition, electrostatic spray deposition and solid-state synthesis methods. However, these methods except solid-state reaction route require different difficult conditions or large quantity of solvent and organic materials [11]. There are several disadvantages in hydrothermal growth technique such as expensive equipment and high total cost.…”

Microemulsion-based synthesis and electrochemical evaluation of different nanostructures of LiCoO2prepared through sacrificial nanowire templates

“…Nanowires of LiCoO 2 were also synthesized through a templating procedure where a sequence of calcination steps (maximum temperature of 500 C and time of 3 hours) and etching with HF were used. 11 The cell performance was tested between 3.0 and 4.2 V at the slowest rate of 30 mA g À1 . The initial discharge capacity of the nanowires was around 78 mA h g À1 , and around 52% of the initial discharge capacity was reached by the 50 th cycle.…”

“…[8][9][10] Alternatives such as hydrothermal reactions are fairly better and achieve desired architectures at considerably lower temperatures. 11,12 However, the use of high annealing temperatures eventually destabilizes the nanostructures, greatly diminishing the utility of the methodology. 12 More recent techniques such as the templating methods suffer from the converse problem, oen producing the preferred nanostructural morphology of an undesired phase of the material.…”